ABB ACS350 User Manual page 261

The state diagram below describes the start-stop function of Control Word (CW) and
Status Word (SW) bits for the ABB Drives profile.
From any state
Emergency Stop
OFF3 (CW Bit2=0)
OFF3
(SW Bit5=0)
ACTIVE
n(f)=0 / I=0
From any state
OFF1 (CW Bit0=0)
OFF1
(SW Bit1=0)
ACTIVE
n(f)=0 / I=0
(SW Bit2 =0)
OPERATION INHIBITED
State
State change
Path described in example
CW = Control Word
SW = Status Word
RFG = Ramp Function Generator
I = Par. 0104 CURRENT
f = Par. 0103 OUTPUT FREQ
n = Speed
* Supported only by ABB DRV FULL profile.
** State transition also occurs if the fault is
reset from any other source (e.g. digital input).
From any state
Emergency Off
OFF2 (CW Bit 1=0)
OFF2
(SW Bit 4=0)
ACTIVE
INPUT POWER OFF
Power ON
A B* C D
(CW Bit3 =0)
OPERATION
INHIBITED
B* C* D*
(CW Bit4=0)*
C D
A
(CW Bit5=0)
D
B*
(CW Bit6=0)
C
D
From any state
Fault
(SW Bit3=1)
FAULT
(CW Bit7=1)**
SWITCH-ON
INHIBITED
(CW Bit0=0)
NOT READY
TO SWITCH ON
(CW xxxx x1*xx xxxx x110)
READY TO
SWITCH ON
(CW= xxxx x1*xx xxxx x111)
READY TO
OPERATE
(CW Bit3=1 and
SW Bit12=1)
OPERATION
ENABLED
(CW=xxxx x1*xx xxx1* 1111
RFG OUTPUT
ENABLED*
(CW=xxxx x1*xx xx11* 1111
RFG: ACCELERATOR
ENABLED
(CW=xxxx x1*xx x111* 1111
OPERATING
Fieldbus control with embedded fieldbus
261
(SW Bit6=1)
(SW Bit0=0)
(SW Bit0=1)
(SW Bit1=1)
(SW Bit2=1)
i.e. Bit4=1)*
i.e. Bit5=1)
i.e. Bit6=1)
(SW Bit8=1)